[TASK] Harmonize coding style of if constructs in /typo3/sysext/cms/
[Packages/TYPO3.CMS.git] / typo3 / ajax.php
1 <?php
2 /***************************************************************
3 * Copyright notice
4 *
5 * (c) 2007-2011 Benjamin Mack
6 * All rights reserved
7 *
8 * This script is part of the TYPO3 project. The TYPO3 project is
9 * free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * The GNU General Public License can be found at
15 * http://www.gnu.org/copyleft/gpl.html.
16 * A copy is found in the textfile GPL.txt and important notices to the license
17 * from the author is found in LICENSE.txt distributed with these scripts.
18 *
19 *
20 * This script is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * This copyright notice MUST APPEAR in all copies of the script!
26 ***************************************************************/
27
28 /**
29 * AJAX dispatcher
30 *
31 * @author Benjamin Mack <mack@xnos.org>
32 * @package TYPO3
33 * @subpackage core
34 */
35
36 $TYPO3_AJAX = TRUE;
37
38 // Include t3lib_div at this time to get the GET/POST methods it provides
39 require_once(dirname(__FILE__) . '/../t3lib/class.t3lib_div.php');
40
41 // First get the ajaxID
42 $ajaxID = (string)t3lib_div::_GP('ajaxID');
43
44 // This is a list of requests that don't necessarily need a valid BE user
45 $noUserAjaxIDs = array(
46 'BackendLogin::login',
47 'BackendLogin::logout',
48 'BackendLogin::refreshLogin',
49 'BackendLogin::isTimedOut',
50 'BackendLogin::getChallenge',
51 );
52
53 // If we're trying to do an ajax login, don't require a user.
54 if (in_array($ajaxID, $noUserAjaxIDs)) {
55 define('TYPO3_PROCEED_IF_NO_USER', 2);
56 }
57
58 require('init.php');
59 require('classes/class.typo3ajax.php');
60
61 // finding the script path from the variable
62 $ajaxScript = $TYPO3_CONF_VARS['BE']['AJAX'][$ajaxID];
63
64
65 // Instantiating the AJAX object
66 $ajaxObj = t3lib_div::makeInstance('TYPO3AJAX', $ajaxID);
67 $ajaxParams = array();
68
69
70 // Evaluating the arguments and calling the AJAX method/function
71 if (empty($ajaxID)) {
72 $ajaxObj->setError('No valid ajaxID parameter given.');
73 } elseif (empty($ajaxScript)) {
74 $ajaxObj->setError('No backend function registered for ajaxID "'.$ajaxID.'".');
75 } else {
76 $ret = t3lib_div::callUserFunction($ajaxScript, $ajaxParams, $ajaxObj, FALSE, TRUE);
77 if ($ret === FALSE) {
78 $ajaxObj->setError('Registered backend function for ajaxID "'.$ajaxID.'" was not found.');
79 }
80 }
81
82 // Outputting the content (and setting the X-JSON-Header)
83 $ajaxObj->render();
84
85 ?>